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Mentored postdoctoral training in Zimbabwe: A report on a successful collaborative effort
Low-and-middle-income countries (LMICs) have high disease burdens, necessitating increased research. However, LMIC research output constitutes only 2% of global total. To increase output, researchers must be capacitated. The University of Zimbabwe (UZ) and the University at Buffalo (UB), developed and implemented the AIDS International Research Training Program (AITRP), in 2008, that focused on graduate scholars. The subsequent HIV Research Training Program (HRTP), begun in 2016, and piloted post-doctoral training to enhance research productivity at UZ. This report discusses the collaboration. As of 2016, prospective candidates applied by submitting letters of intent, research proposals, curriculum vitae and biographical sketches. The scholars research training included hypothesis and project development, completion of grant applications, research project budgets, research presentations to diverse audiences and the application of advanced statistics to research data. The first cohort of five postdoctoral scholars were trained at UZ and UB, between 2016 and 2019. Through the formalized postdoctoral training approach, scholars identified areas of focus. In 2017, one of the scholars obtained a National Institutes of Health (NIH) Emerging Global Leader Award and is now a highly-rated researcher based in South Africa. A second scholar made NIH D43 and K43 grant applications, while the remaining three are academicians and early researchers at UZ. Although research output in Africa and many LMICs is low, it can be built through cooperation similar to the UZ-UB HRTP. This manuscript reports on an effort aimed at building individual and institutional research capacity in Zimbabwe. This can serve as a model for building other similar training programs
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Differences in Cumulative Exposure and Adherence to Tenofovir in the VOICE, iPrEx OLE, and PrEP Demo Studies as Determined via Hair Concentrations
Pre-exposure prophylaxis (PrEP) with oral tenofovir disoproxil fumarate (TDF)/emtricitabine (FTC) prevented HIV acquisition among men and women in several trials and is broadly recommended. In the VOICE and FEM-PrEP trials, however, TDF/FTC-based PrEP did not prevent HIV acquisition among women in eastern and southern Africa. Tenofovir was detected in plasma, reflecting exposure and adherence in recent days, in fewer than one-third of participants. Drug concentrations in hair, which represent cumulative exposure and adherence over weeks to months, have never previously been examined among women on PrEP. We compared tenofovir hair concentrations among women assigned to oral TDF/FTC in the VOICE trial to those among men and transgender women enrolled in 2 open-label PrEP studies, the iPrEx open-label extension (OLE) study and the U.S. PrEP Demonstration Project (PrEP Demo). Tenofovir hair concentrations were detectable in 55% of person-visits in VOICE, 75% of person-visits in iPrEx OLE (p = .006), and 98% of person-visits in PrEP Demo (p < .001). Median tenofovir hair concentrations corresponded to an estimated 0.2, 2.9, and 6.0 TDF/FTC doses taken per week in the three studies, respectively. In VOICE, combining tenofovir concentration data from plasma and hair suggested inconsistent, low-level product use. Incorporation of both short- and long-term adherence measures may allow for an improved understanding of patterns of drug-taking among women during global PrEP roll-out